Chapter 5 CalibrationChapter 5 Calibration
Do not proceed through this section unless there is a definite
need to re-calibrate the controller. Otherwise, all previous
calibration data will be lost. Do not attempt re-calibration
unless you have appropriate calibration equipment. If
calibration data is lost, you will need to return the unit to your
supplier who may change you a service fee to re-calibrate the
unit.
Entering calibration mode will break the control loop. Make sure
that if the system is allowable to apply calibration mode.
Equipment needed for calibration:
(1) A high accuracy calibrator (Fluke 5520A Calibrator
recommended) with following function:
0-100mA millivolt source with +/-0.005% accuracy
0-10V voltage source with +/-0.005% accuracy
0-20mA current source with +/-0.005% accuracy
0-300 ohm resistant source with +/-0.005% accuracy
(2) A test chamber providing 25 C - 50 C temperature range
(3) A switching network (SCANNER 80, optional for automatic
calibration)
(4) A calibration fixture equipped with programming units
(optional for automatic calibration)
(5) A PC with calibration software FD-Net and Smart Network
Adaptor SNA10B (optional for automatic calibration)
Since each unit needs 30 minutes to warm up before calibration.
The calibration procedures described in the following are a step by
step manual procedures.
manual procedures.
43
Apply Enter Key (press for 8 seconds) to enter the
calibration mode. see .Figure 5-1
Figure 5-1
UM L91-Rev 8
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